Wisconsin Electric Co./Dumore Co. - Assigned Patents

Manufacturers Index - Wisconsin Electric Co./Dumore Co.

Wisconsin Electric Co./Dumore Co.
Racine, WI, U.S.A.
Company Website: http://www.dumorecorp.com/
Manufacturer Class: Wood Working Machinery & Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number	Date	Title	Name	City	Description
1,093,820	Apr. 21, 1914	Vacuum-cleaner	Chester H. Beach	Racine, WI
1,094,050	Apr. 21, 1914	Casing for cleaning devices	Chester H. Beach	Racine, WI
1,201,920	Oct. 17, 1916	Sanitary agitator for drink-mixers	Chester H. Beach	Racine, WI
1,201,921	Oct. 17, 1916	Rheostat	Chester H. Beach	Racine, WI
1,252,317	Jan. 01, 1918	Sewing-machine motor	Chester H. Beach	Racine, WI
1,255,378	Feb. 05, 1918	Antifriction-bearing	Chester H. Beach	Racine, WI	Typical ball-bearing cartridges are intended to have a snug fit on the inner race and a looser fit on the outer, so that some longitudinal movement, such as with expansion due to heat, is allowed. "In certain high speed machinery such as high speed portable grinders and other high speed electrical tools this creeping of the outer race-way within the housing has been found to be objectionable. It is therefore the object of the present invention to overcome this objectionable feature and to provide means whereby the outer race-way of the unitary structure (the cartridge) is prevented from creeping in a rotary direction within the housing, but is permitted to have a slight thrust movement therein, longitudinally with the shaft..."
1,272,189	Jul. 09, 1918	Supporting-clamp for sewing-machine motors	Chester H. Beach	Racine, WI
1,291,728	Jan. 21, 1919	Agitator	Chester H. Beach	Racine, WI
1,292,995	Feb. 04, 1919	Means for mounting sewing-machine motors	Chester H. Beach	Racine, WI
188,764	Feb. 18, 1919	Bearing	Chester H. Beach	Racine, Racine County, WI
1,391,039	Sep. 20, 1921	Electric Grinder	Chester H. Beach	Racine, Racine County, WI	Sheridan, Jones, Sheridan & Smith patent attorneys.
1,443,453	Jan. 30, 1923	Universal Multiple Speed Grinder	Chester H. Beach	Racine, Racine County, WI	Sheridan, Jones, Sheridan & Smith patent attorneys.
1,471,769	Oct. 23, 1923	Valve Grinder	Chester H. Beach	Racine, Racine County, WI	Sheridan, Jones, Sheridan & Smith patent attorneys.
249,407	May. 05, 1925	Universal multiple-speed grinder	Chester H. Beach	Racine, WI	Improvements to the universal grinder of US patent 1,391,039. The patent drawing here resembles a toolpost grinder.
252,859	Aug. 18, 1925	Drink mixer	Chester H. Beach	Racine, WI	Wisconsin Electric Co. manufactured drink mixers, small electric motors, bench grinders, direct-drive drill presses, etc. Virtually all their products used the "Dumore" brand and the company name eventually changed to Dumore Corp.
1,859,068	May. 17, 1932	Electric Grinder	Chester H. Beach	Racine, Racine County, WI	George Bayard Jones patent attorney. This patent number was seen on a Dumore No. 5 "The Master" tool-post grinder.
2,188,251	Jan. 23, 1940	Preload adjustment for ball bearings	James Holly Nelson	Racine, WI	This patent number has been seen on a Dumore model 44-011 toolpost grinder.
2,449,764	Sep. 21, 1948	Brush holder	Gary G. Bluemink	Racine, WI	This patent has been seen on a Dumore model 22-011 dometop router, also sold as a Craftsman 623-25190.
2,868,090	Jan. 13, 1959	Attachment for Internal Keyway Cutting and Slotting	David S. McCullough	Racine, WI	Arthur Middleton - patent attorney This invention relates to means for using a reciprocating tool for such operations as internal keyway cutting, shaping, slotting, and nibbling. It is an object of this invention to provide an improvement over previously developed devices that offers greater flexibility of use for a wider range of work, avoids the necessity for heavy rigid frames by obtaining its rigidity through new design features, allows greater cuts in relation to its size and horsepower by providing an increased degree of rigidity between the tool and the work. A second object of this invention is to provide a compact portable device which will add a wide variety of internal keyway cutting and shaping to work done on a lathe, while the work piece is still retained in the same position in the lathe chuck in which its previous operations such as boring or turning were done. A third object is to provide a practically universal portable, shaper which can be readily carried to perform machining operations in place, including forming slots, developing flat surfaces in vertical and horizontal planes in a single set up, able to use either draw-shaping or push-shaping cutting strokes as may be desired and adaptable in its set-up to increase accessibility. Another object of this invention is to devise a tool capable of being mounted on such machine tools as milling machines and boring mills to convert their rotary spindle action to reciprocating tool use for precise shaping and slotting operations and with greater capacity than previously known devices. Yet another object is to devise a tool unit for a lathe or similar work-turning machine tool that performs a combination of turning or boring and reciprocating tool action with only one handling and one set-up of the work piece, at the same time increasing the assurance of accurate relationship between circular surfaces and slotted surfaces.